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Vulnerabilities

Security fix · CVE-2025-55008

The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router.

Published Aug 9, 2025 · catalog updated Aug 11, 2025 · The AuthKit library for

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-55008. EPSS is 0.39%. Act only if a listed version of The AuthKit library for is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The AuthKit library for).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Version ranges on file
Affected products
vendor workos authkit-react-router < 0.7.0

The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router. In versions 0.6.1 and below, @workos-inc/authkit-react-router exposed sensitive authentication artifacts — specifically sealedSession and accessToken by returning them from the authkitLoader. This caused them to be rendered into the browser HTML. This issue is fixed in version 0.7.0.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor workos authkit-react-router < 0.7.0< 0.7.0

How to fix CVE-2025-55008

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-55008. EPSS is 0.39%. Act only if a listed version of The AuthKit library for is installed.

Which versions are affected?

Compare what you have installed with workos authkit-react-router < 0.7.0 < 0.7.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 9, 2025 · EUVD

    Detected

    The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router. In versions 0.6.1 and below, @workos-inc/authkit-react-router exposed sensitive authentication artifacts — specifically sealedSession and accessToken by returning them from the authkitLoader. This caused them to be rendered into the browser HTML. This issue i

  2. Aug 11, 2025 · EUVD

    Updated

    The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router. In versions 0.6.1 and below, @workos-inc/authkit-react-router exposed sensitive authentication artifacts — specifically sealedSession and accessToken by returning them from the authkitLoader. This caused them to be rendered into the browser HTML. This issue i

Sources

  • CVE.orgVulnerability recordCVE-2025-55008

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-55008

    30-day exploitation probability 0.39%

    first.org
  • EUVDVulnerability recordEUVD-2025-24029

    The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router. In versions 0.6.1 and below, @workos-inc/authkit-react-router exposed sensitive authentication artifacts — specifically sealedSession and a

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026